Ernest p



(No Model.)

E. P. WARNER. MULTIPLE CUT-OUT FOR ELECTRIC DISTRIBUTION SYSTEMS- No.453,029. Patented May 26,1891.

.g a a W'fzm55e5. J17 vezzfar.

Irneszfl Warner m M Q f 5 1 Zrn UNITED STATES PATENT OFFICE.

ERNEST P. fARNER OF CHICAGO, ILLINOIS, ASSIGNOR TO THE IVESTERN ELECTRICCOMPANY, OF SAME PLACE.

MULTIPLE CUT-OUT FOR ELECTRIC DISTRIBUTION SYSTEMS.

SPECIFICATION forming part Of Letters Patent No. 453,029, dated May 26,1891. Application filed February 16, 1891. Serial No. 381,698. Nomodel.)

To aZZ whom it may concern.-

Be it known that I, ERNEST P. WARNER, a citizen of the United States,residing at Chicago, in the county of Cook and State of Illinois, haveinvented a certain new and useful Improvement in Multiple Cut-Outs forElectric Distribution Systems, (Case 35,) of which the following isafull, clear, concise, and exact description, reference being had to theaccoml0 panying drawings, forming a part of this specification.

Heretofore in running the wiresfor incane descent electric-lightingcircuits it has been common to arrange a number of safety cutouts in agroup, so ,that they may be alleasily accessible for inspection orrepairs. \Vhen thus arranged,the construction has heretofore been suchthat two separate connections would be required for each cut-out.

My invention consists in the construction hereinafter described, wherebyseveral cutouts may be connected on one side with a common buss -bar bymeans of U-spring switches arranged so as to permit of the readydisconnection of an cut-out from the bussbar. In this manner eachcircuit of lamps would be provided with a cut-outat each point ofattachment tothe main feeders.

My invention will be more readily understood by reference to the'accompanyin g drawings, in which 7 Figure 1 is a diagram showing several ofmy cut-outs in connection \i 'ithinoandescentlight circuits. Fig. 2 is afront view of the double cam and screw clamp, the U-spring beingremoved. Fig. 3 is a side elevation thereof.

Referring 110w to Fig. 1, a is the generator with its different polesconnected with the mains b 0. The buss-bars b c are connected,

respectively, with said mains b c. The lampcircuits have their differentterminals connected with the different buss-bars. Thus circuit cl isconnected at one terminal through 5 the cut-out c with the buss-bar I),and at its other terminal the circuit is closed to bussbar 0' throughthe cut-out f. The lamp-circuit g is connected in a similar manner withthe different buss-bars. The different cut- 5 outs f e are preferably ofthe same construction as shown. I will therefore describe theconstruction of the cut-out c, as shown in Fig. 1, in connection withthe details illustrated in Figs. 2 andS. The fuse-wire 7b is connectedbetween the clamp or binding-post 'i and the double cam-clamp 7., theseclamps i and It being insulated from one another, preferably by beingmounted upon a soapstone orwooden base, as shown.

The U-spring Z is provided with a pivotal 6o connection m with thebuss-bar. The free end of this U-spring is adapted to be bentinwardly asit is forced over either wing of its cam, so as when opposite the grooveit will' expand so as forest in said groove and beheld in position tomaintain the electrical connection between the buss-bar and the clamp70.

In order to disconnect the circuit it is only necessary to turn the Uspring Z upon its pivot away from the cam in eitherdirection, and to 7centirely disconnect a circuit from both mains it is only necessary toturn the U-switoh of each of the two cut-outs of the circuit. It will beseen that by this construction only one connection is required toconnect a wire with a cut-out and hence with the main. The differentparts of the cut-out are attached to the base, so that theyare notliable to become disarranged, and in case of the burning out of a fusethe connection with the main may be readily opened while a new fuse isbeing inserted. It will thus be seen that as many cut-outs as desiredmay be provided in connection with each buss-bar or main source ofsupply, so that lamps orother translating devices in multiple may beconnected therewith as desired.

Having thus described my invention, I claim and desire to secure byLetters Patent o 1. The combination, with the supply eonductors or mainson different sides of the generator, of cutouts, each out-out consistingof a binding-post or clamp for connection with the circuit to besupplied and each provided with a double cam-clamp, with which a U-spring connected with the main is adapted to engage, substantially asand for the purpose specified.

2. The combination, in an electric switch, IOO

of a pivoted U spring and a double cam-clamp, with which the free end ofsaid U-spring is adapted to be brought into connection to hold the samein position and complete the electric circuit, substantially as and forthe purpose specified.

3. In a system of electrical distribution, buss-bars connected to thedifferent sides of a source of supply of electrical energy, saidbuss-bars having two or more U shaped springs pivoted thereto, each incombination With a cam-clamp, with which the free end of thecorresponding U-spring is adapted to be connected and disconnected,substantially as and for the purpose specified.

In witness whereof I hereunto subscribe my name this 20th day of August,A. D. 1890.

ERNEST P. \VARNER.

Witnesses:

GEORGE P. BARTON, ELLA EDLER.

